*Utils methods should not be extensible or able to be instantiated.
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Key: COLLECTIONS-276
URL: https://issues.apache.org/jira/browse/COLLECTIONS-276
Project: Commons Collections
Issue Type: Improvement
Affects Versions: Generics
Reporter: Stephen Kestle
Priority: Minor
Fix For: Generics
I don't see any good reason why this CollectionUtils (and others) isn't final
with a private constructor. There are no non-static methods, and any extension
of them is going to have to call through to the super to avoid compiler
warnings.
e.g. MyCollectionUtils.select() will provoke the warning that "static methods
should be called directly" (on CollectionUtils).
Which would mean
MyCollectionUtils{
public static Collection select(){
return CollectionUtils.select();
}
Which really defeats the purpose. In Java5, we have static imports now -
these provide more benefit than previous extension did anyhow.
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